6-3 自由编程
来源：6-3 自由编程
jia_蛙
2019-11-08 22:22:40
index.jsp <%@ page language="java" contentType="text/html; charset=utf-8" pageEncoding="utf-8"%> <!DOCTYPE html> <html> <head> <meta charset="utf-8"> <title>Insert title here</title> </head> <body> <form action="/dictservlet/dict/verify" method="get"> <input name="word" placeholder="请输入要查询的单词"> <input type="submit" value="查询"> </form> </body> </html>
success.jsp
<%@ page contentType="text/html; charset=utf-8" %>
<span style="color:red; font-size:2em"><%=session.getAttribute("value")%></span>fail.jsp
<%@ page contentType="text/html; charset=utf-8" %>
<%
String word = (String) request.getAttribute("word");
%>
<label style="color:blue; font-size:2em"><%=word%></label>DictVerify.java
package com.zhou.servlet.dict;
import java.io.IOException;
import java.util.HashMap;
import javax.servlet.ServletException;
import javax.servlet.annotation.WebServlet;
import javax.servlet.http.HttpServlet;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;
import javax.servlet.http.HttpSession;
/**
* Servlet implementation class DictVerify
*/
@WebServlet("/dict/verify")
public class DictVerify extends HttpServlet {
private static final long serialVersionUID = 1L;
/**
* @see HttpServlet#HttpServlet()
*/
public DictVerify() {
super();
// TODO Auto-generated constructor stub
}
/**
* @see HttpServlet#doGet(HttpServletRequest request, HttpServletResponse response)
*/
protected void doGet(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException {
//准备工作:定义HashMap并存入一些单词
HashMap<String,String> hm = new HashMap<String,String>();
hm.put("apple", "苹果");
hm.put("banana","香蕉");
hm.put("orange","橘子");
//使用getParameter()方法获取属性值
String word = request.getParameter("word");
boolean isNo = hm.containsKey(word);
if(isNo) {
request.setAttribute("word", hm.get(word));
System.out.println(hm.get(word));
request.getRequestDispatcher("/result/fail.jsp").forward(request, response);
}else {
HttpSession session = request.getSession();
session.setAttribute("value", "没有找到对应的单词解释");
response.sendRedirect("/dictservlet/result/success.jsp");
}
}
}
老师 你看一下哪有有没有需要修改的
写回答
1回答
-
同学你好！
代码功能完成正确
目录结构整洁明了，文件以及类命名规范
加油，很棒！
祝学习愉快~
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